Arduino + 7 Segment

Arduino + 7 Segment

Sebarang pertanyaan/pembelian/bantuan boleh dm saya dia twitter eh:

twitter.com/zakimuslim_

In this post i use :

-Arduino Mega 2560

-5101AS 7 segment

-Breadboard

-Jumper cables.

5101AS 7 segment

Okay before we start wire up the 7 segment, we should know which one pin is "common" pin.

In my case, i use 5101AS model. So when i check the datasheet, i get this....

Common(com) is at the middle. Labelled as "com".

okay now lets go the next step..

wire up your component like this.

remember! dot always at the downside

After finished, open your Arduino IDE and copy and paste this code or just download it here

void setup() {

  pinMode(2, OUTPUT);   //set all pin that i've use as output pin

  pinMode(3, OUTPUT);

  pinMode(4, OUTPUT);

  pinMode(5, OUTPUT);

  pinMode(6, OUTPUT);

  pinMode(7, OUTPUT);

  pinMode(8, OUTPUT);

  pinMode(9, OUTPUT);

  

}

void loop() {

  one();               //tunjuk nombor 1

  delay(1000);    //display number 1 for 1000miliseconds(1second)

  two();

  delay(1000);

  three();

  delay(1000);

  four();              //display number 4

  delay(1000);    //display number 4 for 1second

  five();

  delay(1000);

  six();

  delay(1000);

  seven();

  delay(1000);

  eight();            //keluar nombor 8

  delay(1000);   //akan keluar nombor 8 selama 1 saat

  nine();

  delay(1000);

}

/* modify code here to display another number or characters*/

void one(void)                 //<------------void to display number 1

{

  digitalWrite(2, LOW);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, LOW);      //top

  digitalWrite(5, LOW);      //top right

  digitalWrite(6, HIGH);     //bottom left

  digitalWrite(7, LOW);      //bottom

  digitalWrite(8, LOW);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void two(void)          //<---------------- void to display number 2

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, LOW);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, HIGH);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, LOW);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void three(void)    //<------- call this void to dsplay number 3

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, LOW);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, LOW);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void four(void)      //<----diguna kan untuk keluar kan nombor 4. 

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, LOW);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, LOW);     //bottom left

  digitalWrite(7, LOW);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void five(void)

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, LOW);      //top right

  digitalWrite(6, LOW);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void six(void)

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, LOW);      //top right

  digitalWrite(6, HIGH);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void seven(void)

{

  digitalWrite(2, LOW);      //centre

  digitalWrite(3, LOW);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, LOW);     //bottom left

  digitalWrite(7, LOW);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void eight(void)

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, HIGH);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

void nine(void)

{

  digitalWrite(2, HIGH);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, HIGH);      //top

  digitalWrite(5, HIGH);      //top right

  digitalWrite(6, LOW);     //bottom left

  digitalWrite(7, HIGH);      //bottom

  digitalWrite(8, HIGH);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

Code explaination

  pinMode(2, OUTPUT);   

- to set all pin that i've use as output pin

one();

-called void "one" to display number 1 on 7 segment.

five();

-called void "five" to display number 5 on 7 segment.

delay(1000);

-to display the number on 7 segment for 1 second

void one(void) 

{

  digitalWrite(2, LOW);      //centre

  digitalWrite(3, HIGH);     //top left

  digitalWrite(4, LOW);      //top

  digitalWrite(5, LOW);      //top right

  digitalWrite(6, HIGH);     //bottom left

  digitalWrite(7, LOW);      //bottom

  digitalWrite(8, LOW);      //bottom right

  digitalWrite(9, HIGH);     //dot

}

-this is void wheres i use it to create the number

for example;

digitalWrite(8, HIGH);      //bottom right

-on 7 segment will show this

Download Link

Arduino Code:

https://drive.google.com/open?id=0B3c_VPBO9Qq3aUNnMXVIbEc3N3M